A 28-year-old Ripon man already convicted in a 23-person federal indictment on heroin possession now faces an additional charge in state court.

Authorities arrested Christopher Malzhan on Thursday after a multi-agency heroin bust in the City of Berlin, according to a joint news release from the Waushara County and Green Lake County sheriff's offices. Malzhan appeared Friday in Waushara County Circuit Court, where he faces a felony count of manufacturing or delivering less than 3 grams of heroin, according to online court records. Judge Guy Dutcher set a $25,000 cash bond.

A few days before, the Waushara County Sheriff's Office and the Central Wisconsin Drug Task Force bought heroin from Malzhan in Waushara County, according to the news release. The Green Lake County Sheriff's Office and the Berlin Police Department also participated in the investigation.

Malzhan was out of jail, waiting to be sentenced Feb. 26 in U.S. District Court, according to online court records.

Additional state charges are pending in Green Lake County Circuit Court, according to the news release. If convicted on the most recent Waushara County charges, Malzhan could face a maximum sentence of 12 ½ years in prison, not counting his federal sentence.

Reach Nathaniel Shuda at 920-426-6632 or nshuda@thenorthwestern.com; on Twitter: @onwnshuda.